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Your search for Subject snow hardnessresulted in 708 records.

Title: Inter-Comparison of Snow Penetrometers (Ramsonde, Avatech SP2 and SnowMicroPen) in the Framework of Avalanche Forecasting
Date: 2016-10-02
Authors: Pascal Hagenmuller, Thibault Pilloix, Yves Lejeune
Description: Snow hardness, defined as the resistance against penetration of an object into snow, is a good mechanical indicator of the snowpack stratigraphy and i...
Object ID: ISSW16_O2.01.pdf
Keywords: penetrometer, hardness, avatech sp2, ramsonde, snowmicropen
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Title: Using a Thin-Blade Tool for Measuring Snow Hardness and Change in Strength of Buried Surface Hoar
Date: 2016-10-02
Authors: Fraser Pogue, David M. McClung
Description: Measuring and tracking changes in the properties of snow layers is important for avalanche forecasting. The accuracy of collecting snow data is depend...
Object ID: ISSW16_P1.19.pdf
Keywords: snow hardness, thin-blade, handheld device, penetration resistance
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Title: Evaluation of AvaTech SP2 for Snow Research and Snow Science Education
Date: 2016-10-02
Authors: Hans Peter Marshall
Description: This poster presents results from preliminary testing of the AvaTech SP2 for snow research and snow science education. The SP2 was used during a gradu...
Object ID: ISSW16_P1.21.pdf
Keywords: instrumentation, penetrometer, hardness, snowmicropen
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Title: Ram Profiles With Swiss Penetrometer, Avatech SP2 Probe and Hand Tests. Comparison of the Hardness Profiles Obtained From on Site Detections in the Italian Alps During the 2015-2016 Season
Date: 2016-10-02
Authors: Flavio Berbenni, Igor Chiambretti, Flavio Papetti, Massimo Raviglione, Michela Barberis
Description: In snowpack observations, the hardness profile of snow cover is determined by a ram profile and a hand test which are performed according to codified ...
Object ID: ISSW16_P1.36.pdf
Keywords: ram penetrometer, avatech sp2, hand test, hardness profile
View additional details about Ram Profiles With Swiss Penetrometer, Avatech SP2 Probe and Hand Tests. Comparison of the Hardness Profiles Obtained From on Site Detections in the Italian Alps During the 2015-2016 Season

Title: Critical Length for the Onset of Crack Propagation in Snow: Reconciling Shear and Collapse
Date: 2016-10-02
Authors: Johan Gaume, Alec van Herwijnen, Guillaume Chambon, Nander Wever, Jürg Schweizer
Description: The failure of a weak snow layer buried below cohesive slab layers is a necessary, but insufficient condition for the release of a dry-snow slab avala...
Object ID: ISSW16_O1.02.pdf
Keywords: snow avalanche, crack propagation, critical length, slope angle, pst, slab, weak layer
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Title: The Role of Collapse in Avalanche Release: Review and Implications for Practitioners and Future Research
Date: 2016-10-02
Authors: Edward Bair, Johan Gaume, Alec van Herwijnen
Description: Reports of collapses and whumpfing sounds and their links to instability in the snowpack have been around for decades, but like many areas of snow sci...
Object ID: ISSW16_O1.04.pdf
Keywords: fracture, collapse, anticrack, extended column test, propagation saw test
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Title: Unusual Dry Slab Avalanche Releases Involving Dust-on-Snow Layers in Colorado
Date: 2016-10-02
Authors: Zach M. Guy, Jeffrey S. Deems
Description: In recent decades, dust-on-snow events are increasing in both frequency and geographic extent in the Western U.S. Although dust layers have gained a r...
Object ID: ISSW16_O3.03.pdf
Keywords: dust, slab avalanches, metamorphism, forecasting
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Title: Comparison of Measured and Modelled Snow Cover Liquid Water Content to Improve Local Wet-Snow Avalanche Prediction
Date: 2016-10-02
Authors: Christoph Mitterer, Achim Heilig, Lino Schmid, Alec van Herwijnen, Olaf Eisen, Jürg Schweizer
Description: Wet-snow avalanches can be difficult to forecast. However, recent studies have suggested that an index (LWCindex) related to the mean liquid water con...
Object ID: ISSW16_O6.01.pdf
Keywords: wet-snow avalanches, avalanche forecasting, liquid water content
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Title: Operational Forecasting of Wet Snow Avalanche Activity: a Case Study for the Eastern European Alps
Date: 2016-10-02
Authors: Andreas Gobiet, Christoph Mitterer, Lisa Jöbstl, Walter Steinkogler, Hannes Rieder, Marc Olefs, Arnold Studeregger, Fabiano Monti, Sascha Bellaire
Description: The prognostic operation of detailed snowpack models has recently been objective of extensive research, since many avalanche services start to move fr...
Object ID: ISSW16_O6.02.pdf
Keywords: forecast, wet-snow avalanches, lwcindex, snowpack
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Title: Regional Forecasting of Wet Snow Avalanche Cycles: an Essential Tool for Avalanche Warning Services?
Date: 2016-10-02
Authors: Sascha Bellaire, Alec van Herwijnen, Christoph Mitterer, Nora Helbig, Tobias Jonas, Jürg Schweizer
Description: Wet-snow avalanches are relatively poorly understood and difficult to forecast. By definition, liquid water is required in the snow cover, thus predic...
Object ID: ISSW16_O6.03.pdf
Keywords: avalanche forecasting, wet-snow avalanche, snow cover modelling, numerical weather prediction
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Title: UAV Borne Laser Scanning of Snow Surfaces
Date: 2016-10-02
Authors: Alexander Prokop, Florian Singer
Description: In snow and avalanche research, different methods are used increasingly to efficiently and accurately map snow surfaces and depths over an area of sev...
Object ID: ISSW16_O9.03.pdf
Keywords: snow depth mapping, laser scanning, uav, uas
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Title: Investigating the Thermophysical Properties of the Ice-Snow Interface, Part II: Thermal Contact Resistance
Date: 2016-10-02
Authors: Kevin Hammonds, Ian Baker
Description: As it turns out, spending many an extra cold and blustery minute trying to get those last few temperature readings to complete a textbook perfect "eve...
Object ID: ISSW16_O11.01.pdf
Keywords: ice lens, temperature gradient, effective thermal conductivity, thermal contact resistance, kinetic snow metamorphism
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Title: Measuring Snow Surface Temperature: Why, why Not, and How?
Date: 2016-10-02
Authors: Bruce Jamieson, Michael Schirmer
Description: Avalanche mitigation programs measures snow surface temperature, Tss, for up to three objectives: 1) to infer near surface faceting (NSF) from Tss and...
Object ID: ISSW16_O11.02.pdf
Keywords: surface temperature measurement, snow surface, infrared thermometers, contact thermometers, temperature gradient, near surface faceting
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Title: Variations of Snow Instability Seen From a Bird's Eye
Date: 2016-10-02
Authors: Benjamin Reuter, Jürg Schweizer
Description: The layering of the seasonal snowpack resembles an archive of the season's meteorological history. Whereas at the mountain range scale mainly meteorol...
Object ID: ISSW16_O11.03.pdf
Keywords: snow micro-penetrometer, spatial variability, snow instability, geostatistical modeling, snow cover modeling
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Title: Wind Slab Formation: Will New Experiments Improve Implementations in Snow-Cover Models?
Date: 2016-10-02
Authors: Christian G. Sommer, Charles Fierz, Michael Lehning
Description: Wind slabs are widespread in snow environments but the physics of what is often called wind-packing is poorly understood. Yet, wind slabs are of signi...
Object ID: ISSW16_O11.04.pdf
Keywords: wind tunnel, wind-packing, drifting and blowing snow
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